“And he shall send Jesus Christ, which before was preached unto you:”
King James Version (KJV)
3:20 And he may send - The apostles generally speak of our Lord's second coming, as being just at hand. Who was before appointed - Before the foundation of the world.
Ac 3:20 And he shall send Jesus Christ. Again we have to turn to the Revised Version for the meaning: "And that he may send the Christ who hath been appointed for you, [even] Jesus". The great hope of the Jews was the Messiah. He had come, been rejected, and had returned to heaven. His return will be prepared for by repentance, and turning to the Lord. The blotting out of sins, the seasons of refreshing, and the return of Christ are all, in some measure, dependent on their repentance and turning. The Christ appointed is even Jesus, the crucified One.